<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>


<video id="my-video"
       class="video-js vjs-big-play-centered"
       controls
       preload="auto"
       width="1037"
       height="630"
       autoplay="true"
       poster=""
       data-setup='{}'>
    <source src="D:\FFOutput\19206715_114648.mp4" type='video/mp4'>
</video>

</body>
<script>

function fullScreen(){
var myPlayer =  videojs("my-video");
if(myPlayer.isFullscreen()){
myPlayer.exitFullscreen()
}else{
myPlayer.requestFullscreen();
}
}
</script>
</html>